Table 1. . Patient characteristics.
| Patient characteristics | Pathological diagnosis number (% or range) | Clinical diagnosis umber (% or range) | p-value |
|---|---|---|---|
| Male | 46 (48) | 57 (57) | NS |
| Female | 50 (52) | 43 (43) | NS |
| Median age | 77 (58–93) | 76 (45–94) | NS |
| Smoking (current or former) | |||
| Yes | 93 | 98 | NS |
| No | 3 | 2 | NS |
| Median FEV1 | 1.16 | 0.95 | NS |
| ECOG | |||
| 0 | 11 (12) | 5 (5) | NS |
| 1 | 55 (57) | 54 (54) | NS |
| 2 | 27 (28) | 38 (38) | NS |
| 3 | 3 (3) | 3 (3) | NS |
| Tumor characteristics | |||
| Stage: | 0.006† | ||
| – T1N0 | 68 (71) | 89 (89) | |
| – T2N0 | 28 (29) | 10 (10) | |
| – T3N0 | 0 | 1 (1) | |
| Median diameter | 2.2 cm (0.8–5.3) | 1.6 cm (0.6–4.5) | <0.001† |
| Median PTV volume | 29.6 cc (2.6–122.7) | 18.3 (3.68–97.36) | 0.006† |
| Median SUV | 7.2 (1–39.7) | 4.1 (0.5–20) | 0.004† |
| Histology | |||
| Adenocarcinoma | 42 (44) | – | – |
| Squamous cell | 48 (50) | – | – |
| NSCLC NOS | 6 (6) | – | – |
†Statistically significant p-values.
FEV: Forced expiratory volume; NOS: Not otherwise specified; NSCLC: Non-small-cell lung cancer; PTV: Planning target volume; SUV: Standard uptake value.